These are some specifications of distributors and equivalents that assist in setting up worn ones.
Whether the curves should be changed for modern petrol, driving conditions and modifications to the engine is open to discussion!
Anyone want to do an extensive trial on a dynamometer?
My take on this table is the max advance is 10 degrees (or 20 at the crankshaft) at 1300rpm.
This agrees with my dyno. reading of 21degrees. The extra degree is probably because it was running on 4 star rather than the pool petrol of the 50's.
Recipients of information provided on this site should check with relevant experts before relying on it.
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